Patent US2049987A successfully refreshed from Google Patents.
US2049987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for protecting combustibles
Assignee: UNITED STATES FIRE PROTECTION Corp
•
Filing: 1930-01-13
•
Granted: 1936-08-04
•
Expires: 1950-01-13
Abstract
No abstract record available.
Inventors
- 👤 Walter J Willenborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:07
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/0009; A62C99/0018; A62C3/00; A62C3/07; A62C3/10; B; B63; B63J; B63J2/00; B63J2/02; B63J2/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-08-04 | 1940-02-03 | 1940-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-08-04 | 1944-02-03 | 1944-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-08-04 | 1948-02-03 | 1948-08-04 | $7700.00 | Window Closed / Lapsed |